| Name | RealizedInvestmentGainsLosses |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Realized Investment Gains (Losses) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Realized Investment Gains (Losses), Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:GainLossOnSecuritizationOfFinancialAssets | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:DebtAndEquitySecuritiesRealizedGainLoss | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:GainLossOnSaleOfProperties | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:GainsLossesOnSalesOfInvestmentRealEstate | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:GainLossOnSaleOfOtherInvestments | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:Revenues | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:GainLossOnInvestments | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect | |
us-gaap:RealizedInvestmentGainsLossesAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectAdditionalElements | |
us-gaap:InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrencyAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany | |
us-gaap:InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrency | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany |